Begginer alert!!
I have just started learning perl and have got stuck. I need to initialize a hash array with values from a list. I've been told to do this using a split command, but its just not happening.
Here is the script and output:
SCRIPT:
#!/bin/perl
system("clear");
... (5 Replies)
I have a little problem. To keep a configuration simple, I've exceeded my perl knowledge. :-) I've worked with multi-dimentional arrays before, but this one has me beat:
@info = (
{
'defval' => 'abc'
'stats' = (
{ 'name' => 'a', },
{ 'name' =>... (1 Reply)
Hi,i have a code fragment below.
%tag = (); #line 1
$tag{'info'} = $datastring; #line 2
$resp = $ua->request( #$ua is a user agent
POST 'http://10.2.3.0' ,
Content_Type => application/x-www-form-urlencoded
Content => #line 3 I am not sure of what the code... (3 Replies)
suppose my @{$data1{$callid}}; cotains
one two three
three five six
one two three
of random patterns but each item is separated by white space or tab,
Below code extract and get rid of the whitespace perfectly so that it shows now like this
onetwothree
threefivesix... (2 Replies)
Hi ,
I have an input.txt file that i read
node: id= c1, class=nb, cx=100, cy=100, r=10
node: id=c2, class=b, cx=150, cy=130, r=10
node: id=c3, class=nb, cx=50, cy=80, r=10
node: id=c4, class=nb, cx=120, cy=200, r=10
i split over , and = to create a global array and then passed it to a... (6 Replies)
Hi,
A piece of script from Perl-cookbook I do not understand, and post here for explanation.
The purpose is to find the element in either array (union), and in both array (intersection). Thank you in advance.
@a=qw(1 3 5 6 7 8);
@b=qw(2 3 5 7 9);
foreach $e (@a, @b) {$union{$e}++ &&... (3 Replies)
Hi guys
I have this part of a perl script that returns and odd error
if ($args{software}) {
print " @DISTFILE_GROUPS $output->{distfile_groups}->{ get_rdist_groups}\n";
and the error is
Can't coerce array into hash at
i've never seed this error before, any ideas
thanks... (0 Replies)
How do I get the unique hashes from an array of hashes?
@ar1 = ( {a=>1,b=>2}, {c=>3,d=>4},{a=>1,b=>2});I need :
@ar2 = ( {a=>1,b=>2}, {c=>3,d=>4});Thanks. (2 Replies)
Hi All
I have been using a curl code to output an hash that looks like this
$VAR1 = {
'data'... (5 Replies)
Discussion started by: ab52
5 Replies
LEARN ABOUT MOJAVE
tie::substrhash5.18
Tie::SubstrHash(3pm) Perl Programmers Reference Guide Tie::SubstrHash(3pm)NAME
Tie::SubstrHash - Fixed-table-size, fixed-key-length hashing
SYNOPSIS
require Tie::SubstrHash;
tie %myhash, 'Tie::SubstrHash', $key_len, $value_len, $table_size;
DESCRIPTION
The Tie::SubstrHash package provides a hash-table-like interface to an array of determinate size, with constant key size and record size.
Upon tying a new hash to this package, the developer must specify the size of the keys that will be used, the size of the value fields that
the keys will index, and the size of the overall table (in terms of key-value pairs, not size in hard memory). These values will not change
for the duration of the tied hash. The newly-allocated hash table may now have data stored and retrieved. Efforts to store more than
$table_size elements will result in a fatal error, as will efforts to store a value not exactly $value_len characters in length, or
reference through a key not exactly $key_len characters in length. While these constraints may seem excessive, the result is a hash table
using much less internal memory than an equivalent freely-allocated hash table.
CAVEATS
Because the current implementation uses the table and key sizes for the hashing algorithm, there is no means by which to dynamically change
the value of any of the initialization parameters.
The hash does not support exists().
perl v5.18.2 2013-11-04 Tie::SubstrHash(3pm)